ZINC STEARATE

ZINC STEARATE = Octadecanoic acid, zinc salt (2:1) = ZINC DISTEARATE

ZINC STEARATE ICSC: 0987
Octadecanoic acid, zinc salt
Zinc distearate
Stearic acid, zinc salt November 2000
CAS #: 557-05-1
EC Number: 209-151-9

Zinc Stearate is a zinc soap known for repelling water, and is used in the cosmetics and personal care industries as a lubricant. It is an insoluble salt made of commercial stearic acid, a mild fatty acid used as an emollient and lubricant, and is often combined with zinc oxide. Zinc Stearate is thought to have astringent and antiseptic properties, although there is little research to support this regardig Zinc Stearate specifically; zinc, however, is known to have antibacterial and antiviral properties. Zinc Stearate is used to impart gloss in some industrial uses, and may exhibit this property in cosmetics and personal care products as well
Zinc stearate is a fine, creamy-white powder. It is the zinc salt of stearic acid. It is insoluble in water, alcohol and ether. It dissolves well in aromatic compounds like benzene and chlorinated hydrocarbons on heating. In fact, zinc stearate is strongly hydrophobic.

Zinc stearate is widely used as a binder, release agent, lubricant and vulcanization activator in the rubber and tire industry.

Octadecanoic acid, zinc salt
zinc dioctadecanoate
ZINC DISTEARATE
zinc disteatare
Zinc Disterate
Zinc octadecanoate
zinc octadecanoate
zinc octadecaonate
ZINC STEARATE
Zinc Stearate
Zinc stearate
zinc stearate
Zinc steareate
zinc(2+) dioctadecanoate

Zinc stearate is used as a lubricant, thickener, and to hold together the liquid and oily elements in cosmetics.

KEYWORDS:
ZINC STEARATE, Octadecanoic acid zinc salt (2:1), ZINC DISTEARATE, 557-05-1, 209-151-9, zinc octadecaonate, HSDB 212, Zinc distearate pure, EINECS 209-151-9, NSC 25957

Pharmaceutical
PVC and rubber processing
Cosmetics
Cement product
Paint and coating
Zinc Stearate is applied in the production of furniture coating, upscale ink, and automotive coating, marine coating, powder coating, plastics, polymer resin, fiber rubber, paper, cosmetics, powder metallurgy, and cement product industries, etc.

Zinc Stearate is an insoluble salt usually of commercial stearic acid and usually containing some zinc oxide that has astringent and antiseptic properties and is used as a constituent of ointments and powders
Zinc Stearate
557-05-1

Zinc stearate is a white, hydrophobic powder with a slight, characteristic odor. Mp: 130°C. Density: 1.1 g cm-3. Insoluble in water, ethyl alcohol and diethyl ether. Soluble in acids. Non-toxic. In technical grades, the percentage of zinc may vary according to the intended use. Products with less than the theoretical amount of zinc are more acidic.

Applications: Additives, Plasticizer, Lubricants, Emulsifiers, protective agents, water repellant agents, Heat Stabilizer, Others.
End-Use Industries: Paints & Coatings, Cosmetics, Personal Care, Concrete, Paper, Rubber, and Others.

Personal Care
Zinc stearate is zinc soap with a wide variety of industrial uses.
It is a metal "salt" component of fatty acids and comes in a white solid form that acts as a water repellent.
When heated, it is soluble in aromatic hydrocarbons such as chloride and benzene. This compound is the most powerful of all metal soap mold release agents.
There are no electrolytes present in Zinc Stearate, but its effect is hydrophobic.

Pharmaceutical grade zinc stearates are used as binders, lubricants and mold release agents for tablets. They are also used in cosmetics as anti-caking agents, dusting additives, emulsifying agents, lubricants, mold release agents and water repellents.

Zinc Stearate is probably the most commonly used binding agent in powder makeup products such as face powders or eyeshadows. It gives very good adherence qualities meaning it helps powders to stick together in the pan and to stick to the skin on application. It is typically used at 3-10%, too much of it though can cause lumpiness or greasiness on the skin.

Zinc stearate is a mild antiseptic and astringent, and it has been used as a local soothing application for inflammatory and irritating skin diseases. Zinc stearate is primarily used in pharmacuetical formulations as a lubricant in tablet and capsule manufacture at concentrations up to 1.5% w/w. It is a protective agent used in powders and ointments in the treatment of eczema, acne, and other skin diseases. GRAS - Zinc stearate complies with FDA Standard CFR 21 sections 177.2600, 182.8994 and 178.2010.

Zinc Stearate is specifically developed for the polymer industry. It has excellent melt clarity. In addition, its high purity ensures a superior heat stability to prevent haze in high clarity polymers.

Zinc Stearate is used as a lubricant and mold release agent in unpigmented crystalline and impact polystyrene compounds.
Zinc Stearate is an excellent mold release agent for phenolic, melamine, urea-formaldehyde, and other thermoset molding compounds where a heat stable material is required.
Lubricants has been the primary market for zinc stearate. Zinc stearate is used as a lubricant, thickener, and to hold together the liquid and oily elements in cosmetics. Zinc stearate is mixed as a lubricant additive together with the metal powder. The proportion of lubricants varies from 0.5% to 5.0% by weight. In the compacting phase in the press, the lubricants improve flow and compressibility characteristics; the binders have the opposite effect. The different amount of the two additives influences the porosity and final properties of the material. Zinc stearate has an advantage over other lubricants as it provides zinc for the alloy which is beneficial in certain processes.

Zinc stearate (C36H70O4Zn) is a compound with variable proportions of stearic and palmitic (fatty) acids. Zinc stearate is made by reacting sodium stearate with a solution of zinc sulfate.

Zinc stearate can be used as a water-repellent, a protective agent used in powders and ointments in the treatment of eczema, acne, and other skin diseases.[1] It may also be used as a lubricant in cosmetic formulations to improve texture and smoothness. Zinc stearate has antiseptic, astringent and topical protective properties

Industries of use:
Plastics - Zinc Stearate is used as an easily incorporated lubricant and releasing agent.
Rubber - This chemical compound is a popular release agent used in producing many rubber items, polyester processing systems, and polyurethane. These uses take advantage of Zinc Stearate's nonstick property. The compound also acts as an "activator" in the rubber vulcanization process of various accelerants and sulfur.
Cosmetics - In the industrial production of cosmetics products, Zinc Stearate serves as an excellent lubricant and thickening agent that greatly improves texture and viscosity.

Zinc Stearate is an oleochemical substance featuring a white, powdery appearance.
Also known as zinc soap, Zinc Stearate has the ability to repel water and is insoluble in certain types of polar solvents.
Zinc Stearate is formed by combining stearic acid with zinc oxide, the latter of which is an organic white-powder compound that is insoluble in water.
While it does not produce a strong odor, Zinc Stearate powder does have a slight fatty acid scent.There are a number of methods employed to manufacture Zinc Stearate.
In addition to the direct method of combining stearic acid with zinc oxide, there is also an indirect method known as precipitation, which entails the formation of a solid from a liquid solution.
The fusion method involves a high-shear process using tightly controlled pressure and temperature conditions.
Zinc Stearate offers a number of chemical properties that are invaluable from a manufacturing perspective.
These include lubricity, compatibility and hydrophobicity (not attracted to water). It also features a “sharp” melting point, meaning it liquefies upon melting.
The latter characteristic differentiates Zinc Stearate from other metallic stearate materials.
Zinc Stearate can be either veg or tallow-based — veg-based materials come from vegetable sources, while tallow-based materials are extracted from animal sources.
Like all Metallic Stearates, Zinc Stearate has many industrial applications.
The USP grade can be used in pharmaceutical, nutraceutical and cosmetic applications when used according to CFR 21 and FDA guidelines.

USES & APPLICATIONS
Some of the industrial uses for Zinc Stearate include:Cosmetics: Zinc Stearate acts as an anti-caking agent in powdered cosmetics.
Other uses of Zinc Stearate in cosmetics include as a lubricant, as well as a thickening agent for enhancing texture.

CASE: In CASE applications, Zinc Stearate serves as a lubricant aid in sanding sealers and as a flatting agent in paints and coatings.

Metalworking Fluids: Manufacturers of various types of metalworking fluid manufacturers make use of Zinc Stearate as an effective mold release lubricant.
This is particularly beneficial in the manufacture of powdered metals where it has minimal impact on sintering, which is the process of causing a powdered substance to coalesce into a solid or porous material via heating, but without liquefaction.

Pharmaceuticals and Nutraceuticals: Zinc Stearate facilitates mold release for tableting when used according to CFR 21 and FDA guidelines.

Plastics: Zinc Stearate is a highly effective pigment dispersion aid and lubricant in PVC, polyethylene and ABS production.
In SMC (sheet molding compound) applications, it is used as a viscosity modifier and improves the surface of the finished good.
Zinc Stearate also acts as a scavenger for acidic residues in polyolefin manufacture and is used as a mold release agent and process lubricant in the production of polystyrene.

Rubber: Zinc Stearate serves as an internal lubricant in molded rubber production and as an external lubricant or dusting agent with excellent anti-block properties.
One of the most common Zinc Stearate uses in rubber manufacturing is as a release agent, as well as an activator for rubber vulcanization.

Use: Lacquers, Emulsifying Agent, Polystyrene Chain Length Modifier - Heat Stable, Neutralizer, Mold Release Agent and Surface Lubricant.
Use: Zinc stearate is a zinc soap that is known for repelling water. Zinc Stearate is commonly used as a release agent, heat stabilizer and lubricant in the plastics, polyolefin, polystyrene and rubber industry. Zinc Stearate is also used as a sanding additive in wood coatings (lacquers). In cosmetics, zinc stearate is a lubricant and thickening to improve texture. The insoluble salt is made of commercial stearic acid, a type of mild fatty acid that is used as an emollient and lubricant. It is often combined with zinc oxide. Zinc, on its own, is known to have antibacterial and antiviral properties.

ZINC STEARATE
ZINC STEARATE is classified as :
Anticaking
Cosmetic colorant
Viscosity controlling

CAS Number: 557-05-1
EINECS/ELINCS No: 209-151-9
INN Name: zinc stearate
PHARMACEUTICAL EUROPEAN NAME: zinci stearas
Chem/IUPAC Name: Zinc dioctadecanoate

Zinc stearate Application
Whole segments which this compound is used as a primary component are:

Construction
Packaging
Automotive
Rubber
Plastics
Concrete
Paint and Coating
Personal Care
Pharmaceutical

Zinc Stearate acts as a lubricant, emulsion stabilizer, anti-caking and bulking agent.
Zinc Stearate is produced from fine quality stearic acid.
Zinc Stearate helps increase volume in applied cosmetics. Zinc Stearate is used in applications where a free flowing final product is desired such as aerosol and cosmetic powders.

Zinc Stearate acts as an anti-caking and viscosity increasing agent. Zinc Stearate finds application in formulating deodorants, color cosmetics and facial-, sun- & body care products. Meets ISO 9001 and ISO 14001.

Benefits
Anti-caking Agents
Thickeners & Stabilizers

Zinc stearate acts a surfactant, lubricant, thickening and opacifying agent. It is used in cosmetic creams.

Pigments > Opacifying Products > Polymers/ Surfactants
Lubricants / Slip Agents
Surfactants / Cleansing Agents

COSMETICS
It usually appears in make-up formulations such as eyeliner, eye shadows, facemasks, lipsticks, face powders and foundation creams.
Zinc stearate does not cake; it flows very well and adds a silky touch to the mix.
Zinc stearate is probably the most commonly used binding agent in powder makeup products.
It gives very good adherence qualities meaning it helps powders to stick together in the pan and to stick to the skin on application.
It is typically used at 3-10%, too much of it though can cause lumpiness or greasiness on the skin.

Zinc stearate is used as a lubricant, thickener, and to hold together the liquid and oily elements in cosmetics.
Zinc stearate also improves the final appearance of the product.

Zinc stearate usually appears in make-up formulations such as eyeliner, eye shadows, facemasks, lipsticks, face powders and foundation creams.
Zinc stearate does not cake; it flows very well and adds a silky touch to the mix.

ZINC STEARATE POWDER FOR PLAYING CARDS
ZINC STEARATE is widely used in the world of playing cards for the following purposes:
· Fans: If the card deck is impregnated with a thin layer of zinc stearate, the cards will slide more easily. The stearate remains transparent. It is used by magicians and casinos.
· Card deck cleaning: Zinc stearate is impregnated in cotton to restore playing cards that may have been dirtied or marked by oil on the hands or through use.
Zinc stearate, due to its degree of fineness, is inserted into the scratches that the cards may have.
ZINC STEARATE fills them and makes handling easier, as well as increasing speed when using the card decks.

ZINC STEARATE AS A SEPARATING AGENT FOR METALURGY
ZINC STEARATE is an ideal separating agent for difficult machine parts, whether metal or plastic.
ZINC STEARATE prevents the parts from adhering to the mould, leaving a better finish.

VARNISHES AND PAINTS
In its finest form, zinc stearate has transparent properties and is used in the manufacture of varnishes and paints.
It provides great dispersal ability and acts as a sealer for imperfections on the surface and as a thickener.
In addition, it protects the paint from moisture due to its water-repelling properties. Zinc stearate for Coating and Paint provides advantages such as low fatty acid, high purity, good transparency, super-fineness, dispersing, and more. Zinc stearate for Coating and Paint is widely applied in furniture coating, upscale ink, automotive coating, marine coating, powder coating, plastics, polymer resin, fiber rubber, paper, cosmetics, powder metallurgy, and cement product industries.
Zinc stearate provides great dispersability and acts as a sealer for imperfections on the surface and as a thickener.
Zinc stearate for Coating and Paint provides advantages such as low fatty acid, high purity, good transparency, super-fineness, dispersing, and more.
Zinc stearate for Coating and Paint is widely applied in furniture coating, upscale ink, automotive coating, marine coating, powder coating, plastics, polymer resin, fiber rubber, paper, cosmetics, powder metallurgy, and cement product industries.

ZINC STEARATE IN PLASTICS AND COLOUR ADDITIVES
Like other stearates, zinc stearate has a wide number of applications in the plastics industry::

· Zinc stearate is used as a lubricant and stabilizer in the production of PVC.

· zinc stearate is used as a pigment dispersant in Masterbatch.

· Due to its properties of transparency zinc stearate is used in impact glass applications, such as polystyrene for glass and other clear polymers.

· zinc stearate is employed as a metal releasing agent in polyurethane.

ZINC STEARATE IN SINTERIZING – POWDER METALURGY
Zinc stearate is mixed as a lubricant additive together with the metal powder. The proportion of the lubricants varies from 0.5% to 5.0% by weight.

In the compacting phase in the press, the lubricants improve flow and compressibility characteristics; the binders have the opposite effect.
The different amount of the two additives influences the porosity and final properties of the material.
Zinc stearate has an advantage over other lubricants as it provides zinc for the alloy which is beneficial in certain processes.

Finally, the additives are volatilized from the part “in green” in the sintering oven after compacting in the press.

ZINC STEARATE AS A LUBRICANT IN EXTRUDERS

ZINC STEARATE is used to improve productivity in production using extrusion and lamination of plastics and metals, calcium stearate is added.
Zinc stearate acts as an additive and solid lubricant adding between 0.3 -1.0% of calcium stearate to the mixture in the feed hopper.
This remains stable at high temperatures and improves the following points in manufacturing:

· Product homogeneity
· Hot spots
· Energy consumption
· Saving of raw materials

Gelling agent.
Stabilizer
Polystyrene packaging, expanded polystyrene.
Lubricant for polyolefins
Paper industry.
Anti-sticking agent.
Lubricant and compactant in pharmaceutical products.
Deodorant sticks.
Demoulder in sintered products and in rubber.
Lubricant vehicle in cosmetics.
Sanding agent in lacquers.
Lubricant for PVC.
Water repellent, especially designed for the building industry.

DESCRIPTION
Formula: Zn 2 [CH 3 (CH 2 ) 16 COO]

Physical form: powder, granules, flakes (flakes).

White powder with a special crystal structure. Does not cause foam and does not affect viscosity. The introduction in an amount of 2% allows you to achieve light skinning of the finished paint coat.

Production method

Zinc stearate occurs by the reaction of interaction of stearic acid with calcium hydroxide with heating and vigorous stirring.

Application:

- As a heat stabilizer and internal lubricant in the manufacture of PVC products.

- As an activator of vulcanization of rubbers and rubber compounds.

- As a leveling agent in polyurethane and nitrocellulose varnishes.

- As a water repellant, which, when added to dry systems, provides the water-repellent properties of the surface of the hardened solution and prevents its capillary water permeability without reducing air permeability.
Particularly suitable for façade and wet room materials.
- As an additive for waterproofing materials.

- Reduces destruction, pollution and efflorescence of facade materials.

- Increases the mobility of concrete and plaster mixes.

- Reduces the effect of acids on the hardened solution.

- Reduce the consumption of paints and varnishes and impregnating materials.

Outline
Zinc stearate is white light fine powder. Formula is ZN (C17H35COO) 2, molecular structure is RCOOZnOOCR (R is alkyl group of industry stearate), it is combustible, specific gravity is 1.095, ignition point is 900℃, density is 1.095, melting point is 130℃, it has creamy feel. It is insoluble in water, alcohol, ether, soluble in hot ethanol, turpentine, benzene and other organic solvents and acids. Zinc stearate is heated and dissolved in organic solvent, when exposes cold, it becomes jelly, when meets strong acid, it can decompose into stearic acid and corresponding zinc. It has lubricity, hygroscopic, non-toxic, slightly irritating, non-polluting, non-hazardous properties. For zinc stearate is dissolved in benzene and calcium stearate is benzene-insoluble, it is possible to separate the calcium stearate and zinc stearate.
Zinc stearate is not soluble in polar solvents, but when be heated, it is high dissolved in aromatic compound agent chlorinated hydrocarbons. The main application areas are plastics and rubber industry, it is used as lubricant and release agent for excellent compatibility.

Uses
1. Zinc stearate can be used as rubber products soften lubricants, textiles lighting agent, PVC stabilizers.
2. It can be used as stabilizer in polyvinyl chloride plastics, rubber softener.
3. Zinc stearate can be used in the pharmaceutical industry, preparation of solidified oil and lubricants, it can be also used as paint drying agent. Non-toxic products for PVC and rubber processing, the synergy of calcium stearate and barium stearate can effectively improve PVC and rubber for light and heat stability, PVC processing amount is usually <1; it can be used for touch agent of rubber products, it can also be used as polymeric additive of PP, PE, PS, EPS and pencil manufacturing, it is generally used in the amount of 1 to 3 parts.

How to remove residual zinc stearate of aluminum surface processing
It is generally used polish manner to treat residual zinc stearate. It maybe damage the substrate when uses lure acid.

Product Features
Zinc stearate has good thermal stability, initial stage stainability is small, it has good light stability and it has synergy effect with calcium stearate and barium stearate, it has foam effect and it can be used as foaming aid in foam products, it can be used as the lubricant of cosmetic face powder.
Glue the pink plastic lubricants.
Zinc stearate is used as PVC stabilizers. When coordinates with barium-cadmium soap, it is mainly used in soft products, characteristic is that it can restrain initial coloration and avoid sulfide pollution. Zinc stearate can also be used styrene (polystyrene and ABC, SAN resins), phenolic resins, amino resins and plastics and other heat-curing polyester plasticizer, lubricant and release agent of transparent products. In the rubber industry, it can be used as rubber lubricants and anti-blocking agent, curing catalyst media activator.
It can be used as lighting agent of textile products.
It can be used as flatting agent in enamel paint industry.

Description: Zinc stearate is a "zinc soap" that is widely used industrially. In this context, soap is used in its formal sense, a metal "salt" of a fatty acid. It is a white solid that repels water. It is insoluble in polar solvents such as alcohol and ether but soluble in aromatic hydrocarbons (e.g., benzene and chlorinated hydrocarbons) when heated. It is the most powerful mold release agent among all metal soaps. It contains no electrolyte and has a hydrophobic effect. Its main application areas are the plastics and rubber industry where it is used as a releasing agent and lubricant which can be easily incorporated.
Zinc carboxylates, e.g. basic zinc acetate, adopt complex formulas, and are not simply dicarboxylates of zinc. Instead the formula for most zinc carboxylates is Zn4O(O2CR)6, consisting of a Zn4O6+ core with carboxylate ligands spanning the edges.

Chemical Properties: white powder with fatty acid odour
Chemical Properties: Zinc stearate occurs as a fine, white, bulky, hydrophobic powder, free from grittiness and with a faint characteristic odor.
Uses: Used in Rubber, Plastic, Poyester, Abbrasive, Coating, Printing Inks and PVC Industry.
Uses: In tablet manufacture; in cosmetic and pharmaceutical powders and ointments; as a flatting and sanding agent in lacquers; as a drying lubricant and dusting agent for rubber; as a plastic mold releasing agent; as a waterproofing agent for concrete, rock wool, paper, textiles.
Uses: zinc stearate is used in cosmetic formulations to increase adhesive properties. It is also used as a coloring agent. This is a mixture of the zinc salts of stearic and palmitic acids.

Application
It is widely used as a release agent for the production of many kinds of objects rubber, poly urethane, poly ester processing system, powder metallurgy. These applications exploit its "non-stick" properties . In cosmetics, zinc stearate is a lubricant and thickening to improve texture.
It is an "activator" for rubber vulcanization by sulfur and accelerators. As discovered in the early days of vulcanization, zinc has a beneficial effect on the reaction of the sulfur with the polyolefin. The stearate is a form of zinc that is highly soluble in the nonpolar medium of the poly olefins.
Being lipophilic, it functions as a phase transfer catalyst for the saponification of fats.

Production Methods: An aqueous solution of zinc sulfate is added to sodium stearate solution to precipitate zinc stearate. The zinc stearate is then washed with water and dried. Zinc stearate may also be prepared from stearic acid and zinc chloride.
General Description: White, hydrophobic powder with a slight, characteristic odor. Mp: 130°C. Density: 1.1 g cm-3. Insoluble in water, ethyl alcohol and diethyl ether. Soluble in acids. Non-toxic. In technical grades, the percentage of zinc may vary according to the intended use. Products with less than the theoretical amount of zinc are more acidic.
Reactivity Profile: Zinc stearate is non-flammable but combustible. Incompatible with oxidizing agents, dilute acids. Emits acrid smoke and fumes of ZnO when heated to decomposition (Hazardous Chemicals Desk Reference, p. 865 (1987)).
Pharmaceutical Applications: Zinc stearate is primarily used in pharmaceutical formulations as a lubricant in tablet and capsule manufacture at concentrations up to 1.5% w/w. It has also been used as a thickening and opacifying agent in cosmetic and pharmaceutical creams, and as a dusting powder.

Safety Profile
Poison by intratracheal route. Inhalation of zinc stearate has been reported as causing pulmonary fibrosis. A nuisance dust. Combustible when exposed to heat or flame. To fight fire, use water, foam, CO2, dry chemical. When heated to decomposition it emits toxic fumes of ZnO. See also ZINC COMPOUNDS.

Safety
Zinc stearate is used in oral and topical pharmaceutical formulations, and is generally regarded as a nontoxic and nonirritant excipient. However, following inhalation, it has been associated with fatal pneumonitis, particularly in infants. As a result, zinc stearate has now been removed from baby dusting powders.
LD50 (rat, IP): 0.25 g/kg

storage
Zinc stearate is stable and should be stored in a well-closed container in a cool, dry place.

Incompatibilities
Zinc stearate is decomposed by dilute acids. It is incompatible with strong oxidizing agents.

Regulatory Status
GRAS listed. Included in the FDA Inactive Ingredients Database (oral capsules and tablets). Included in nonparenteral medicines licensed in the UK. Included in the Canadian List of Acceptable Non-medicinal Ingredients.

Rapid industrialization and growing demand from various end-use industries are expected to boost the growth of global zinc stearate market in the coming years. In addition, increasing demand for polyvinyl chloride and other polymers that uses metallic stearates in different types of processing coupled with growing usage of metallic stearates during manufacturing of various polymers, such as polyolefin, phenolic resins, and polystyrene could lead the lead the zinc stearate market towards substantial growth. Moreover, metallic stearate can be used in variety of applications ranging from water repellence, foam inhibition, lubrication, stabilizing, separating properties, and gelling.

Global Zinc Stearate Market: Trends and Opportunities

The global zinc stearate market could witness a substantial growth on account of rising augmentation of zinc stearate in end-use industries. In addition to this, growing demand from emerging countries such as China and India is likely to further usage of zinc stearate. Zinc stearate can also applied in PVC in order to enhance the color along with effective impact. Zinc stearate also finds application in several products of lipsticks, face powders, eyeliner, foundations, and mascara. Furthermore, zinc stearate used in fragrances, deodorants, and other beauty products. The demand of zinc stearate in rubber industry and PVC is anticipated to boost the application of zinc stearate.

Zinc stearate is a chemical compound of zinc. It is used mainly as a releasing agent and lubricant in the rubber and plastics industry. Zinc is a metallic element with the atomic number 30. It is found in nature most often as the mineral sphalerite. Though excess zinc in harmful, in smaller amounts it is an essential element for life, as it is a cofactor for over 300 enzymes and is found in just as many transcription factors

Zinc stearate is a white color solid. It is a zinc salt of acid stearic. It is not miscible in water, alcohol, and ether but it totally well miscible in aromatic material like benzene and chlorinated hydrocarbons through heating. It is a hydrophobic or lipophilic chemical compound. This material is produced in flake, granule, powder and pastilles shapes. In general, it applied as the release, thickening and emulsifier agent in wide variety ranges of industries.

This material application is almost in the plastics and rubber industries. This compound is applied to the production process of chemicals like rubber, metallurgy powders and etc…..to prevent other materials to bond with surface or specifically as a release coating agent. In the rubber industry, it is used as an activator in sulfur vulcanized rubbers. Zinc stearate functions as an aid in processes that need to remove and de-active impurities and undesirable reactions. Because of its Lipophilicity characteristics, it acts as a catalyst through phases for the saponification process (Saponification is a process that converts fat and oils in presence of heat and also in alkali condition to soap and alcohol) in fats.

The production method for zinc stearate
Industrial process
Zinc stearate is produced by precipitation process within two steps; stearic acid neutralization by sodium hydroxide and second step as disintegration using zinc sulfate in order to deposits zinc stearate. It is used in natural rubber through the blending process in order to check if there are any differences when we use fillers or not.

Production method (inventive method)
Following steps are describes as synthesis process:

Blending citric acid, acetic acid, and water as the catalyst
Applying a high-speed mixer as a reaction vessel
the proportion of each constituent is respectively stearic acid, zinc oxide, citric acid, acetic acid to the water of 100:15.7:0.1:0.1:1
Mixing and stirring quickly and then after 40 minutes zinc stearate produced

Lubricants has been the primary market for zinc stearate. Zinc stearate is used as a lubricant, thickener, and to hold together the liquid and oily elements in cosmetics. Zinc stearate is mixed as a lubricant additive together with the metal powder. The proportion of lubricants varies from 0.5% to 5.0% by weight. In the compacting phase in the press, the lubricants improve flow and compressibility characteristics; the binders have the opposite effect. The different amount of the two additives influences the porosity and final properties of the material. Zinc stearate has an advantage over other lubricants as it provides zinc for the alloy which is beneficial in certain processes.

Zinc stearate is a "zinc soap" that is widely used industrially. In this context, soap is used in its formal sense, a metal salt of a fatty acid: in this case stearic acid. It is a white solid that repels water. It is insoluble in polar solvents such as alcohol and ether but soluble in aromatic hydrocarbons (e.g., benzene) and chlorinated hydrocarbons when heated. It is the most powerful mold release agent among all metal soaps. It contains no electrolyte and has a hydrophobic effect. Its main application areas are the plastics and rubber industry, where it is used as a releasing agent and lubricant which can be easily incorporated.[2]

Zinc carboxylates, e.g. basic zinc acetate, adopt complex formulas, and are not simply dicarboxylates of zinc. Instead the formula for most zinc carboxylates is Zn4O(O2CR)6, consisting of a Zn4O6+ core with carboxylate ligands spanning the edges.

Applications
It is widely used as a release agent for the production of many kinds of objects: rubber, polyurethane, polyester processing system, powder metallurgy. These applications exploit its "non-stick" properties.[2] In cosmetics, zinc stearate is a lubricant and thickening agent used to improve texture.[3]

It is an "activator" for accelerated rubber sulfur vulcanization. As discovered in the early days of vulcanization, zinc has a beneficial effect on the reaction of the sulfur with the polyolefin. The stearate is a form of zinc that is highly soluble in the nonpolar medium of the polyolefins.

Being lipophilic, it functions as a phase transfer catalyst for the saponification of fats.[2]

Niche uses
It is a component of some paints, imparting gloss. As a chief ingredient in "fanning powder", it is used by magicians performing card manipulation to decrease the friction between playing cards.

ZINC STEARATE
557-05-1
Zinc octadecanoate
Zinc distearate
Dermarone
Metallac
Stearates
Octadecanoic acid, zinc salt
Zn Stearate
Talculin Z
Stavinor ZN-E
UNII-H92E6QA4FV
zinc;octadecanoate
Metasap 576
Zinc stearate W. S
zinc(II) stearate
Stearic acid, zinc salt
Zinc stearate [USP]
H92E6QA4FV
Zinc stearate (USP)
Hydense
Hytech
Mathe
Coad
Zinci stearas
Zink distearat
MFCD00013031
Octadecanoic acid, zinc salt (2:1)
Unichem ZS
Zincum stearinicum
Dibasic zinc stearate
Petrac ZN-41
Caswell No. 926
Synpro stearate (VAN)
Witco Zinc Stearate USP
HSDB 212
Zinc distearate, pure
EINECS 209-151-9
NSC 25957
Zinc stearate, total dust
EPA Pesticide Chemical Code 077002
Zincstearate
AI3-00388
Zinc bisstearate
ZnSt
Zinc stearate, respirable fraction
zinc dioctadecanoate
Zinc Stearate SPL
Zinc Stearate TCG
Zinc Stearate TCP
EINECS 257-363-5
Octadecanoic acid, zinc salt, basic
Lubimax Zinc Stearate
Rashayan Zinc Stearate
Stearic acid zinc salt
ACMC-20aj8a
EC 209-151-9
SCHEMBL4923
C36H70O4Zn
DTXSID7027209
Stearic acid, zinc salt (8CI)
AKOS015915230
51731-04-5
R391
FT-0645152
D06370
A830766
Q204923
UNII-NNE1S98907 component XOOUIPVCVHRTMJ-UHFFFAOYSA-L
144188-98-7

Zinc stearate is a zinc soap that is known for repelling water. Zinc Stearate is commonly used as a release agent, heat stabilizer and lubricant in the plastics, polyolefin, polystyrene and rubber industry. Zinc Stearate is also used as a sanding additive in wood coatings (lacquers). In cosmetics, zinc stearate is a lubricant and thickening to improve texture. The insoluble salt is made of commercial stearic acid, a type of mild fatty acid that is used as an emollient and lubricant. It is often combined with zinc oxide. Zinc, on its own, is known to have antibacterial and antiviral properties.
Appearance of Zinc Stearate
Zinc stearate is a very fine, soft and colorless powder. It’s a high quality material with an exceptionally small particle size. It doesn’t have a strong odor, though it’s possible for there to be a slight fatty acid scent because of the long-chain fatty acids. Zinc stearates are soluble in aromatic compounds and chlorinated hydrocarbons when warmed, but they are insoluble in alcohol and ethers.
Best Applications for Zinc Stearate
Zinc stearate has many unique properties, which is why it can be used in a wide range of industries. For example, zinc stearate is used industrially as a release agent, lubricant and heat stabilizer for rubber and plastic manufacturers. It’s used as a sanding additive in wood coatings. Zinc stearate also acts as a lubricant and thickener in cosmetics. Thanks to its lubricating effects, water repellency, gelling capacity and non-stick texture, zinc stearate is highly versatile.
Below are the industries that benefit from using zinc stearates:
-Rubber
-Plastics/Polymers
-Masterbatch
-Paint and Coating
-Cosmetics
-Pharmaceutical
-Paper
-Concrete

In comparison to other metallic stearates, zinc stearate has a low melting point (120°C) – meaning it spreads very evenly when heated.

Zinc stearate is mainly used in the plastics and rubber industries, where it is used as a lubricant and release or powdering agent. Zinc stearate functions as an acid scavenger and processing aid in certain polyolefin applications. In addition, it improves the abrasiveness of sandpapers, and acts as a matting agent in paints and coatings. In construction, powdered zinc stearate is utilized as hydrophobic agents for plasters.

Zinc stearates are available in various product forms - as powder or low-dust products – and as derivatives from animal or vegetable raw materials.
Zinc stearate is used as a release agent for the manufacturing of rubber, polyurethane and polyester processing. It is a lubricant and thickening agent in cosmetic industry. It plays a vital role as an activator for rubber vulcanization. It acts as a phase transfer catalyst in the saponification of fats due to its lipophilic character. It is an active component in fanning powder, which is utilized to decrease the friction between cards.

ACF
AFCO-DISPER ZD
COAD 20
DERMARONE
DIBASIC ZINC STEARATE
DISPERSO D
DLG 20
EFUKOKEMU ZNS-P
F 115
F 155
F 155 (SALT)
F 930
GF 200
HIDORIN D 523
HIDORIN E 366
HIDORIN E 619
HIDORIN F 115
HIDORIN F 930
HIDORIN SZ 40
HIDORIN Z 7
HIDORIN Z 7-30
HYMICRON F 930
HYMICRON LIII
HYMICRON ZK 349
KV 85A1
LIQUAZINC AQ 90
LUBRAZINC W
METALLAC
METASAP 576
MR 450
PETRAC ZN 44HS
PG 2000
R 1004
RSN 131HS
SAK-ZS-P
SAK-ZS-PLB
STAVINOR CECAVON ZN
STAVINOR ZN-E
STEARATES (DOES NOT INCLUDE STEARATES OF TOXIC METALS)
STEARIC ACID, ZINC SALT
SYNPRO ABG
SYNPRO ACF
SYNPRO DLG 20
SYNPRO STEARATE
SZ 2000
SZ-DF 2
SZ-DF-PF
SZ-DFF
SZ-P
SZ-PF
SZ-PG
SZ-T
SZ-TF
TALCULIN Z
Z 2000
Z 7-30
ZINC DISTEARATE
ZINC OCTADECANOATE
ZINC SALT OF STEARIC ACID
ZINC STEARATE
ZINC STEARATE G
ZINC STEARATE GF 200
ZINC STEARATE GP
ZINC STEARATE L
ZINKUM 5
ZN-K
ZNS-P
ZNS-S

Functions:

Zinc Stearate is a zinc soap known for repelling water, and is used in the cosmetics and personal care industries as a lubricant.
It is an insoluble salt made of commercial stearic acid, a mild fatty acid used as an emollient and lubricant, and is often combined with zinc oxide.
Zinc Stearate is thought to have astringent and antiseptic properties, although there is little research to support this regardig Zinc Stearate specifically; zinc, however, is known to have antibacterial and antiviral properties. Zinc Stearate is used to impart gloss in some industrial uses, and may exhibit this property in cosmetics and personal care products as well

Zinc stearate acts as a lubricant, anti-tack agent and waterproofer. Designed to reduce adhesion between rubber surfaces.
Product Type
Slip / Anti-block / Anti-tack Agents > Anti-block /Anti-tack Agents
Lubricants / Waxes > Metallic Stearates
Waterproofer

Description
Zinc stearate is a "zinc soap" that is widely used industrially. In this context, soap is used in its formal sense, a metal "salt" of a fatty acid. It is a white solid that repels water. It is insoluble in polar solvents such as alcohol and ether but soluble in aromatic hydrocarbons (e.g., benzene and chlorinated hydrocarbons) when heated. It is the most powerful mold release agent among all metal soaps. It contains no electrolyte and has a hydrophobic effect. Its main application areas are the plastics and rubber industry where it is used as a releasing agent and lubricant which can be easily incorporated.
Zinc carboxylates, e.g. basic zinc acetate, adopt complex formulas, and are not simply dicarboxylates of zinc. Instead the formula for most zinc carboxylates is Zn4O(O2CR)6, consisting of a Zn4O6+ core with carboxylate ligands spanning the edges.

Chemical Properties
white powder with fatty acid odour

Chemical Properties
Zinc stearate occurs as a fine, white, bulky, hydrophobic powder, free from grittiness and with a faint characteristic odor.

Uses

Used in Rubber, Plastic, Poyester, Abbrasive, Coating, Printing Inks and PVC Industry.

Uses
In tablet manufacture; in cosmetic and pharmaceutical powders and ointments; as a flatting and sanding agent in lacquers; as a drying lubricant and dusting agent for rubber; as a plastic mold releasing agent; as a waterproofing agent for concrete, rock wool, paper, textiles.

Uses
zinc stearate is used in cosmetic formulations to increase adhesive properties. It is also used as a coloring agent. This is a mixture of the zinc salts of stearic and palmitic acids.

General Description
White, hydrophobic powder with a slight, characteristic odor. Mp: 130°C. Density: 1.1 g cm-3. Insoluble in water, ethyl alcohol and diethyl ether. Soluble in acids. Non-toxic. In technical grades, the percentage of zinc may vary according to the intended use. Products with less than the theoretical amount of zinc are more acidic.

Reactivity Profile
Zinc stearate is non-flammable but combustible. Incompatible with oxidizing agents, dilute acids. Emits acrid smoke and fumes of ZnO when heated to decomposition (Hazardous Chemicals Desk Reference, p. 865 (1987)).

Pharmaceutical Applications
Zinc stearate is primarily used in pharmaceutical formulations as a lubricant in tablet and capsule manufacture at concentrations up to 1.5% w/w. It has also been used as a thickening and opacifying agent in cosmetic and pharmaceutical creams, and as a dusting powder.

storage
Zinc stearate is stable and should be stored in a well-closed container in a cool, dry place.

Incompatibilities
Zinc stearate is decomposed by dilute acids. It is incompatible with strong oxidizing agents.

Raw materials
Glycerol tristearate Zinc sulphate Zinc oxide Stearic acid Sodium hydroxide PALM OIL

ZINC STEARATE has proved itself to be one of the most effective lubricants since metallic soaps of the calcium stearate order were first introduced.
The latter showed the ability to convert fluid oils into semi‐solid grease which would remain in bearings for lenghty periods, and which has been further extended by substitution of the zinc salt.
Although mixing of a solution of the zinc salt with one of a soluble soap, whereby the metallic soap curds‐out, would initially indicate a simple process, there is much more to it than this.
Since most of the applications of zinc stearate depend more on physical than chemical properties, even minor modifications in the conditions of manufacture can exert differences in the product quite out of proportion to what might be expected.

Zinc Stearate is one of the most widely used additives in the plastics field. It also serves as a lubricant or emulsifier in the toiletries and cosmetics areas, and can be used for mold release.
Zinc Stearate provides clarity required in polystyrene resins.

Properties and use instructions

1. For PVC hard products: used as stabilizer and lubricant agent, it can improve the gelation speed with the basic lead salt and lead soap.
2. For polyethylene and polypropylene: used as halogen absorbing agent, it can eliminate the bad effect of residual catalyst to the resins color and stabilizer in the resins.
3. For polyolefin fiber and plastic model products: used as lubricant and mold-releasing agent.
4. For rubber processing: used as mold-releasing and plasticizer agent, intensifier for lubricating grease, water-proof agent for textiles, flatting agent for paint chemical industry,etc.
5. Also can be used in food additive, feed additive and cosmetics.

Zinc stearate (C36 H70 O4 Zn) is a metallic additive ; or the metallic “salt” of fatty acid.

It is a hydrophobic white solid, which repels water. It is insoluble in polar solvents such as alcohol or ether, but dissolves well when heated in aromatic solvents.

It is a powerful mold release agent.

Properties :
Non-stick

Thickening

Anti-caking agent

Phase transfer catalyst for saponification of fats

Hydrophobic

Examples of use :
– It is mainly used in the plastics and rubber, polyurethane and polyester industries, as a mold release agent and easily incorporated lubricant.

– It is also used in metallurgy for its non-stick properties.

– Zinc stearate is also used in the manufacture of soaps, detergents and cleaning products, glues, paper and cardboard …

– In the cosmetics industry, zinc stearate is a lubricant and thickener, and viscosity control agent.

Available sizes :
powder

Zinc distearate
209-151-9 [EINECS]
3919706
557-05-1 [RN]
Dioctadécanoate de zinc [French] [ACD/IUPAC Name]
MFCD00013031 [MDL number]
Octadecanoic acid, zinc salt (2:1) [ACD/Index Name]
stearic acid zinc salt
ZH5200000
Zinc dioctadecanoate [ACD/IUPAC Name]
Zinc stearate
Zinkdioctadecanoat [German] [ACD/IUPAC Name]
(OCTADECANOYLOXY)ZINCIO OCTADECANOATE
[557-05-1]
144188-98-7 [RN]
257-363-5 [EINECS]
51731-04-5 [RN]
72535-55-8 [RN]
8028-87-3 [RN]
afco-disper ZD
Coad
D06370
demarone
Dermarone
Dibasic zinc stearate
EINECS 209-151-9
EINECS 257-363-5
elektol MZ 2
Hidorin D 523
Hydense
Hymicron Z
Hytech
Mathe
Metallac
Metasap 576
Octadecanoic acid, zinc salt
Octadecanoic acid, zinc salt, basic
Petrac ZN-41
Stavinor ZN-E
STEARIC ACID, ZINC SALT
Stearic acid, zinc salt (8CI)
synpro ABG
Synpro stearate
Synpro stearate (VAN)
Talculin Z
Unichem ZS
Witco Zinc Stearate USP [USP]
zinc and octadecanoate
Zinc distearate, pure
ZINC OCTADECANOATE
Zinc salt of stearic acid
Zinc stearate (USP)
Zinc stearate [USAN] [USAN]
zinc stearate G
zinc stearate GP
Zinc Stearate NF EP Kosher
Zinc stearate W. S
zinc stearate(Zn-St)
Zinc stearate, respirable fraction
Zinc stearate, total dust
Zinc stearate, ZnO 12.5-14%
ZINC(2+) DIOCTADECANOATE
ZINC(2+) ION BIS(N-OCTADECANOATE)
zinc(2+) ion bis(octadecanoate)
Zinc(II) stearate
zinc;octadecanoate
Zinci stearas
zincstearate
Zincum stearinicum
Zink distearat
Zn Stearate
硬脂酸锌 [Chinese]

Typical applications
PVC Processing
The main application is in the stabilization and lubrication of rigid PVC compounds. It is used in combination with calcium or other metal stearate to form primary stabilizers (most used are grades TM,TB and SP).

Polyethylene Manufacture and Processing
Employed maily as as acid acceptor and lubricant (most used are grades TM and TMD)

Polyamides H.I. and expandable
Internal and external lubricant (most used are grades TM and TMD).

Polyesters
Used as lubricant.

Paint and Lacquer
Used as lubricant.

Polyurethane
Used as lubricant with release agent effect.

Abrasive paper
Used as lubricant and sanding sealer.

Latex and Rubber Process
Used as anti-blocking agent.

Building Materials
Applied as hydrophobic agent in mortars and plaster (most used are grades TM and TW).

Sources/Uses
Used to manufacture drugs, lacquers, and plastics; also used as a dietary supplement, waterproofing agent, heat and light stabilizer, and lubricant; [HSDB] Stearates are salts of octadecanoic acid. Zinc stearate is used in cosmetic powders for its adhesive properties. [ACGIH]

Zinc stearate is a white amorphous powder; the melting point minimum 110 °C. It is soluble in benzene, toluene, methanol, ethanol; it is not soluble in water, ketones, esters; it is partially soluble in dilute mineral acids.

Zinc stearate is a surfactant.

Range of application

It is used as a vulcanization activator and a plasticizer of rubbers. It is especially recommended for the manufacture of transparent rubbers. It is also used for the plasticizing of rubber mixtures. It is used as a powder to prevent sticking of rubber compounds and products. It is an antilocking lubricant in the production of rubbers. The dosage of zinc stearate when used as a vulcanization activator and a rubber plasticizer is 2–5% wt.

Zinc stearate is used as a lubricant in the processing of a variety of plastics. It is a thermo and light stabilizer of PVC products, usually added together with stearate of calcium, lead, barium, cadmium (in the manufacture of linoleum, artificial leathers, shoe plastic compounds, packaging film, etc.). The dosage when used in the compositions of plastics is 0.1–1% wt.

In the production of molding powders it is used as a lubricant, prevents adhesion of pressmaterials to bowls, screws in the manufacturing process and to frames in the processing into products. It is used as the sealing grease in the ester impregnating compounds for sheet molding materials, glass-filled premixes, etc. In perfume industry it is introduced into cosmetic powdered units, powder as a hydrophobic component. In dense powders it improves the adhesion and coating of powders. In construction it is used as a hydrophobic additive for dry plaster mixtures. It is used as a leveling agent in polyurethane and nitrate cellulose varnishes.

Zinc stearate is also used in paper industry as an auxiliary component which makes the mixtures homogeneous and contributes to better mixing, as well as makes the paper surface smooth (special paper and cardboard grades). In the production of powder metallurgy items it is used as a lubricant and an additive increasing the wear resistance. In ceramics industry it is used as an additive improving viscosity and making the mass plastic, as well as gives the product integrity.

Zinc Stearate is a powerful mould release agent, external lubricant and dispersing agent for plastic and rubber applications. Its high clarity makes it suitable for polystyrene resins. Zinc stearate also used in the coatings and construction chemicals industries.